<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    body {
      margin: 0;
      padding: 0;
      width: 100vw;
      min-width: 1040px;
      height: 100vh;
    }
    .father {
      display: flex;
    }
    @media screen and (max-width: 1920px) {
      .son {
        width: 600px;
        height: 500px;
      }
    }
    @media all and (max-width: 1440px) {
      .son {
        width: 300px;
        height: 300px;
      }
    }
   
  </style>
</head>
<body>
  <div class="father">
    <div class="son" style="background-color: red;">

    </div>
    <div class="son" style="margin-left:200px; background-color: blue;">
  
    </div>
  </div>
</body>
</html>